<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Title</title>
        <style>
            *{
                margin:0;
                padding: 0;
            }
            header{
                width: 1170px;
                background: #bbbbbe;
                height: 90px;
            }

        </style>
    </head>
    <body>
        <header>
            <h1></h1>
            <nav>
                <a href="#">首页</a>
                <a href="">关于网思</a>
                <a href="">关于网思</a>
                <a href="">关于网思</a>
                <a href="">关于网思</a>
                <a href="">关于网思</a>
            </nav>
        </header>
    </body>
</html>